dudley



2 SheetsSheet 1.

R. G'. DUDLEY,

, Shutter-Wqrker. -No. 225,116. Patented Mar. 2, I880.

jgyj I WITNESSES I I INVENTOR ATTORNEY N-FETERS, PHOTO-LITHDGRAPHER.WASHINGTON, (1,0,

erence marked thereon.

'Jersey City, in the county of Hudson and UNITED STATES PATENT OFFICE.

BUSSEL G. DUDLEY, OF JERSEY CITY, NEW JERSEY.

SH UTTER-WORKER.

SPECIFICATION forming part of Letters Patent No. 225,116, dated March 2,1880. Application filed January 6, 1880.

To all whom it may concern Be it known that I, RUssEL G. DUDLEY, of

State of New Jersey, have invented a new and valuable Improvement inBurglar-Proof Blind Locks and Manipulators; and I do hereby declare thatthe following is a full, clear, and exact description of theconstruction and operation of the same, reference being had to theannexed drawings, making a part of this specification, and to theletters and figures of ref- Figure l of the drawings is a representationof a transverse section of a window-frame, showing the blind open. Fig.2 is an inside view of the frame, showing the arrangement of the lockingdevice. Fig. 3 is a horizontal section of the frame, showing theoperatinglevers interlocked; and Fig. I shows detail perspective viewsof the said levers.

This invention has relation to means for operating and locking blinds orshutters from within without raising the window-sash or disturbing thecurtains.

The nature of the invention consists in the combination, with theside-to-side-moving lever geared to the blind-lever and a slotted platehaving ways, of the crank-eccentric and the locking-armshavingfulcrum-studs, as hereinafter shown and described.

In the accompanying drawings, the letterA designates an ordinarywindow-frame, and B the sill, which is boxed underneath, as shown at C.To the lower board or floor of the box is fastened, by the centerscrews, or a, the bearin g-plate D, which is provided at one end with acurved rim, b, and has a hollow center post, a, through which one ofsaid screws passes, while at the center of the other end is arranged ashorter pivot-post, 0, through which the other screw passes. On thelonger post 0 is pivoted the outer lever, E, one end of which passesthrough the slideway cl, which is attached to the lower edge of theblind F, the other end being provided with teeth or studs e, to engagewith the segment-shaped and toothed end of the inner lever, G.

The outer lever, E, is made with a broad bearing end, j, which rests onthe rim 1) of the bearing-plate. The inner lever, G, is pivoted on theshorter post 0, and its handle end g extends through a slot in thewindow-frame, which is protected by a slotted plate, H. Notches h aremade on the edges of this lever,

to engage with the notches It at the ends of the locking-arms K of thelocking device, so as to prevent them from being forced out of position.

L represents the eccentric crank or handle, having the eccentric l, andpivoted to the plate H under its slot, as shown in the drawings at 2'.

Circular openings are made in the ends of the locking-arms K, whichencircle the eccentric, and said arms are provided with fulcrumbearingstuds n, which play in the ways to of the plate H in its lower portionunder the slot.

The blind is operated by moving the leverhandle 9 from side to side, andit is locked in position at either end of the slot by turning theeccentric-crank upward, thereby depressing the engaged ends of thelocking-arms and raising the notched ends, either of which can then, bymanipulating the eccentric, be moved into engagement with the notch onthe adjacent edge of the lever. By depressing the crank L the outer endsof the lockingarms are caused to fall to a level with the lower edge ofthe slot in the plate H, thereby leaving said slot free for the movementof the operating-lever G.

I am well aware that blinds have been operated from within by gearedconnections, and I do not claim, broadly, such devices.

Having described this invention, What I claim, and desire to secure byLetters Patent, 1s-

The combination, with the side-to-sidle-moving lever G, geared to theblind-lever, and the slotted plate H, having ways w, of thecrankeccentric L and the locking-arms K, having fulcrum-studs,substantially as specified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

RUSSEL GILBERT DUDLEY.

